213608464 has 10 divisors (see below), whose sum is σ = 413866430. Its totient is φ = 106804224.

The previous prime is 213608459. The next prime is 213608471. The reversal of 213608464 is 464806312.

It can be written as a sum of positive squares in only one way, i.e., 148644864 + 64963600 = 12192^2 + 8060^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6675249 + ... + 6675280.

It is an arithmetic number, because the mean of its divisors is an integer number (41386643).

Almost surely, 2^213608464 is an apocalyptic number.

It is an amenable number.

213608464 is a deficient number, since it is larger than the sum of its proper divisors (200257966).

213608464 is a wasteful number, since it uses less digits than its factorization.

213608464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13350537 (or 13350531 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 213608464 is about 14615.3502865994. The cubic root of 213608464 is about 597.7773916682. Note that the first 3 decimals are identical.

The spelling of 213608464 in words is "two hundred thirteen million, six hundred eight thousand, four hundred sixty-four".